Can-washing device



July 24. 1928.

l. H. KENDALL CAN WASHING DEVICE 4 Sheets-SheetI .l

Filed Dec. 29, 1925 l. H. KENDALL CAN WASHING DEVICE July 24, 1928.

Filed Deo. 29, 1925 4 sheets-sheet 2 INVENTOR ATTORNEYS July"24`, 1928. 1,678,252 l. H. KENDALL CAN WASHING DEVICE Filed Dec. 29, 1925 4 Sheets-Sheet 3 INVENTOR I JIM www BY/fJa/m ATTORNEY7 ZT-g 5 I f 'ummm-fm ..m IHI U MEN A1w); m z x l,

July 24, 192s. 1,678,252

l. H. KENDALL GAN WASHING DEVICE Filed Dec. 29, 1925 4 Sheets-Sheet 4 I N VEN TOR.

2m/@L Z BY WZWW A TTORNEYS Patented July 24, 192s.

UNITED STATES PATENT-OFFICE.

ma H. KENDALT., on ro'rsnm, maw Yonx, AssIGNon 'ro 'nu'. kunnen. mams, ING., or rorsnm, Nnw Yonx, A CORPORATION or nw Yonx.

oAN-wasirme Dnvrcn.

Application led December 29, 1928. Serial lo. 688,808.

laterally so as to subject every portion of the interior or exterior of the can or other receptacle to' a thorough washing action.

Another object of my invention is to provide can washing devices of Such character that the water delivered thereto from a. pipe or pipes is spread out laterall that 1s, 1n a horizontalplane without' the angerof any clogging of the nozzles or other washing devices used. l

Another object of my invention is to provide can washing devices which' shall be particularly effective upon the dirtlest portions of certain receptacles, such as milk cans,

namely, upon the aring body portions,

necks and heads of: such milk cans.

Another object of my invention is to provide washing devices which shall be operable to thoroughly cleanse the covers of milk cans.

Other objects of my invention will be set 3b forth in the following description and drawings which illust-rate preferred embodiments thereof. L

Fig. l is an elevation partially 1n section showing one form of my inventlon.

Fig. 2 is an elevation partially 1n sectlon illustrating a washing interior and the exterior of the can are simultaneously washed.

Fig. 3 is a top view of Flg. 2

4 is a sectional view showmg a detall of one of the exterior washing heads shown in Fig.

Fig. shown in tioTi:

1 of wghing heads a milk can. v

Figure 7 is a sectional view of the Washin'g devices shown in Figure 6.

-5 is a detail top view of the ,parts Fig. 4 and it is partlally 1n seere 6 is an elevation showing theuse for cleansmg the cover of device in which the Figs. 8, 9, 10 illustrate another embodiment, showing different forms of nozzles ada ted for use in either of the forms of was ing machines herein illustrated. Flg. 11 is an elevation partiall in sect1on showing a further modified orm.

F1g. 12 is a section on the line 12-12 of Fig. 11. ,l

- 1n the embodiment shown in Fig. 1 the rece tacleC'whichin thejembodiment erein 1l ustrated,is a milk can,is'mounted upon a supportl. The supportf 15 isada ted to be moved into and out of a tank 2.- Elhe mechanism for moving the Ysupport; member 15 (u anddown is'not illustrated in the drawings because variousty s of old and well known mechanism cou d be used for this purpose and my invention is neither directednor limited to any particular type of such', mechanism. Similarly, numerous other accessory parts' which in themselves vare, old land well known are omitted fromv. the ydrawings for the 'sake of clearness and such accessory parts are `fully described in my former application, Serial No. 551,- 570. The tank 2 is provided with interior .guide-rods 8 on which guides 10 aresIidably mounted. The guides 10 have a'shield 9 connected theret.- Exterior to the tank, guides 6 are provided for the slidable weights 7 and these weights 7 are connected to the guides 10 by meansof ropes 5 which ass around ulleys Iimounted upon the earings 3. e weights 7 normally keep the shield!) at the upper end of the tank-2, as shown in full lines in Fig. 1. v

The balile 14 is designed to vdeliver 'a hori- 'zontal sheet of `water and as fthsisheet of water is of high velocity, thiswould cause a good deal of splashingl when the water came in contact with the sides of tank 2 if it were not for this shield 9. This'k shield may have its upper edge above the sheet of water, so that this sheet of water will be deflected downwardly. The water is thus 10o diverted vertically into the tank, and will not come in contact with the top of the sides of tank 2. When the support for the receptacle is lowered, it lowers the shield 9, which is forced into its lower position shown in dotted lines in Fig. 1. v

Hence, the vertically movable shield 9 which contacts with the can support 15 with its upper .edge above the sheet of water 'permlts the use of a continuous flow washing 110 head, in which the sheet of water is diverted downwardly by shield 9 and confined within the receptacle C. The object of this shield is to permit the use of a continuous flow head delivering a `substantially horizontal sheet of water to prevent the sheet from coming in contact with the top of tank 2, and thus prevent splashing from this tank. When the can leaves this tank the shield remains above this sheet of water, diverting the sheet downwardly and it remains above this sheet until it is forced downwardly by the support 15 so that this sheet is confined within the can.

A pipe l1 which communicates with any suitable source of water under pressure is vertically mounted within the tank 2 and this pipe 11 has a plurality of symmetrically arranged nozzles 12 at the upper-portion thereof. The nozzles 12 are closely adjacent a stationary and hollow baille 14 which is supported by any suitable means. rlhe baille 14 can be connected to pipes 12 in any suitable manner. llhen water is delivered through the nozzles 12 under considerable pressure each stream of water is deflected outwardly and it also spreads laterally, that is, in a direction perpendicular to the axis of the baille 14.

Hence the interior of the can is washed by a series of arcuate and continuous sheets of water which may overlap7 or be slightly spaced from each other or have their edges coinciding as they imninge upon various portions of the can so that every portion of the interior of the can is subjected to the washing action of a very large volume of water. rlhis water may be mixed with various cleansing agents but l prefer to use pure water free from alkalis and carrying a certain amount of sand or other suitable abrasive.

ln the embodiment shown in Fig. l, the

sheet or sheets of water which are finally cleiiected from the baille 14 move outwardly in a substantially horizontal direction so that a very powerful cleansing effect is exerted upon the inside of the can, but by suitably shaping the baille 14, said sheet or sheets may be projected at any desired angle. It may be noted that the four jets of water delivered from the nozzles 12 may be caused to coalesce into a continuous circular sheet before the water leaves the baille 14 as this can be done by suitably dimensioning and shaping the various parts.

Experience has shown that if a very large volume of water is delivered into the interior of the can, which is highly desirable, drainage of the water out ofthe can is interfered with when the washing head is in operation and delivering a horizontal sheet, as the sheets of Water prevent the free drainage of water if the baille 14 is made solid. This interference with the free drainage of whichy will take place when suilicient water is forced into the can, substantially reduces the full washing action of the sheets of water, butthis is taken care of in the present design by the hollow baille 14, which allows the wash water to drain out of the can through this hollow baille and into tank 2. It is not expected that this washing head will wash the bottom `of the can but the purpose of the tank 2 together with this horizontal sheet of water, hollow baille plate, and the retarding control device (shown in my companion ap lication filed on the same day) is to wasi the ilare of the neck, the neck of the can, and the iiaring'body port-ion of the can and the side of the'can as far asV the head moves into the can, giving this portion of the can an cxtremely violent washing. If the baille 14 is solid, experience has shown lthat when a large volume of water is forced into the can, it does not drain out with suilicient rapidity from the upper part of the can. However, the hollow baille 14 permits the drain water to pass out of the can through the central hollow portion of baille 14, especially when the can is in the lower position shown in dotted lines in Fig. 1.

Fig. 2 illustrates how the tank 16 is provided with washing mechanism for cleansing the exterior of the can. Hence, the can may be washed in tank 16 as Well as in tank 2 illustrated in Fig. 1 so that the outside of the can is given a thorough cleansing and the inside of the can may be subjected to a plurality of washing operations. The pipes 2O located on the outside oi the tank 16 are each connected to a washing head 22 provided with a baille 2l spaced therefrom. The outer vertical edge of each baille 21 is on a vertical line passing through the interior of its pipe 2Q and this line is preferably not coincident with the axis of the pipe 20, but is close to the outer end of the pipe 20. Each baille 21 is connected to its washing head 22 by a screw 28 and this also serves to support a deiiector 24. Hence each jet of water delivered through each pipe 20 is divided into two portions by the adjacent baille 21. The greater portion of vthe Water of each jet is directly deflected by the inner portion of each baille 21 against the outside of the can. Since ailarge volume of water is desirable, and a high velocity for this large volume of water is also desirable, a very violent splashing is prevented by the relatively small amount of water which passes between each washing head 22 and the outer portion of its baille 21, which is deflected downwardly by the annular deilector 24. This upper sheet of water acts as a blanket to minimize any upward spattering of the lower sheet of water. It Will be noted that each washing head such as the washing head 22, for example, has a solid wall substantially parallel the washing water,

- was axis'oftrheass'ociad pipe and im end-.

' Levanta wall which is inclined to the axisv 'of the `pinges u pipe and which -is opposite the `mouth of the Asaid pipe so that any water which. im-

on the end wall issues laterally,A

rom the ateral mouth of the washing hea .isl located in the hollow washing head is' located o poste the mou-th .ofthe associate pipe and y tween the deflecting end wall and the'mouth of the pipe.

' come very disagreeable, l5.

This is very important especially in cold weather, as otherwise working conditions beand the proper action of the mechanism can be affected if ice f `accumulates from the spattered water.

` and each baille 21 has ,what may As shown in Fig.` 5, each washin head 22 die called a wedge shape or contour in a horizontal plane so that each jet of'water delivered y each pipe 20' is spread out laterally so that the sheets of water delivered by the respective washing heads 22 are continuous and the sheets cover the entire area of the outside of the can, as itis raised and lowered within the tank 16.

As before mentioned the sheets of water delivered by the washing heads 22 ma b? caused to overlap upon the outside wa the can. 'In the embodiment shown in Figs.

6 and 7 it is assumed that each can cover C' is moved in a horizontal plane in any suitable path. The top of the cover C' is acted upon by a washing head 25 which is supplied with water under pressure through a pipe 27 and it has a baille 30 whereby the Water delivered through the pipe 27 is spread l out into a continuous circular sheet so that all arts of the top of the cover are thoroug ly washed. The underside or interior of the can` cover is washed by means of two washing heads 26 each of which is fed with water under pressure through a pipe 28. Each washing head 26' is rovided with baffles 31 and 32 so that tie Water entering through the pipe 28 is deflected and spread -out laterally-so as to form a conical sheet.

As the cover C is moved from one washing head 26 to another, each washing head operates to first wash the outer wall of the flange of the cover as well as the interior of the top thereof.- As shown inFig. 6 every portion of the underside of the can cover C' is thoroughly washed by means of a large volume of water as the cover passes from one head to another.

In Fig. 7, the cover C' is supposed to be moved in the plane of the paper.

It will be over each washing head 26, that the entire interior of the llange thereof is washed by a conical sheet of water which spreads upwardly and then inwardly along the top of the' cover as before explained with reference to the It will alsobe noted that the baille 21 which 'washing of the can C so that the cleansing action 1s very thorough.

l Simultaneously, as shown in Fi 6, thel water is 'spread out by the baffles in t e washing heads so as to form a sheet, the elements -of which are inclined at various angles to the line of movement of the said cover sol is subjected to an efficient washing action.

The vunderside of the can cover is Washed by two intersecting sheets of Water. The

lines ol' movement of each body of water which acts upon the underside of the can cover, have a double inclination in each of two perpendicular planes. Thus as shown in Fig. 7, the ballles 31 and 32 cause the body of water delivered by oneI of the washing heads 26 to move in divergin inclined paths in a plane which is substantiall parallel to the direction of movement of t 1e cover C. The ballles 31 and 32 are shaped so that the portions of the jet of Water delivered through the pipe 28 which impinge thereon, are spread out in a direction substantially perpendicular to the plane of movement of the cover C'.

I prefer to have the baille 32 so located that it takes substantially half of the jet of water delivered through the pipe 28.

In t-he embodiments shown in Figs. 8, 9 and 10, the pipe 40 which is connected to a source of Water under pressure, is connected to three symmetrically arranged nozzles 4l, 42 and 43, the said nozzles respectively having the washing heads 46, 45 and 44. Each Washing head has a baille of the contour shown in Fig. 10 which illustrates the baille 47 of the washing head 44. Hence, each washing head delivers an arcuate sheet of water and these arcuate sheets overlap when they strike the body of the4 can', at any desired point of the body of the said can. Hence the can is washed by a plurality of bodies of Water which are caused to impinge upon and cover overlapping zones of the can.

In order to prevent interference and splashing, the Washing heads are vlocated so that they deliver their three sheets of water at various heights. This has been found to minimize undesirable splashing. In these Figures 11 and 12 I show how the devices or elements illustrated in the preceding figures may be combined in a unitary structure.

In said Figures 11 and 12 the reference characters c', 2', 3', 4. 5', 6', 7', 8', 9', 10', 11', 12', 14', 15', 20', 21', 22', and 24' llO indicate the same partsas do the corresponding 'reference characters in the other views, min'ns the mark. A

I have shown several preferred embodiments of my invention, but it is clear that numerous changes and( omissions could be made without departing from its spirit, and I do not wish to be limited to the details herein specified.

I prefer to havethe sheets of Water supplied by the'various washing'heads herein illustrated, in the form of solid sheets which are caused to perform their cleansing function before they have broken up into drops or spray. This causes each sheet of water to spread laterally upon the surface on which it impinges and this assists in securing the proper cleansing action.

It is to be noted that wherever I refer in the .description or claims to can washing devices, that I do not thereby wish to limit my invention to the purpose of washing cans or milk cans alone, and that furthermore, I consider that the cover of a` milk can'or the like, is a portion of the complete receptacle, so that my invention is also directedto this purpose.

I claim:

l. In washing devices for cans or other receptacles, the combination of a tank, a support therein for the can adapted to be moved upwardly and downwardly, a washing device located within said tank and a shield movable with said support located within said tank and adapted to prevent any spattering of the water supplied to the washing device.

2. In washing devices for cans or other receptacles, the combination of a tank, a support therein for the can adapted to be moved upwardly and downwardly, and washing devices located within said tank and adapted to force water against the interior of the can in a direction inclined to the verti cal axis of the can, and a shield `movable with said support located within said tank and adapted to prevent spat-tering, and means adapted to normally keep said movable shield at the upper end of said tank.v

3. I-n washing devices for cans or otherY receptacles, the combination of a tank hav- -ing a plurality of washing heads at the exterior thereof, each washing, head having a pipe for delivering water thereto, each washing head having a baille which is spaced therefrom, each said battle being adapted to divide the water delivered from the respective pipe into a plurality of bodies which separatel impinge u on the can, and a de-l Hector adapted to deiiieet one of said bodies toward the bottom of the can. y x

4. A washing device forcans or other receptacles comprising a hollow washing head having a pipe connected thereto, said washing head having a lateral mouth and having an end Wall which is aligned wit-h the mouth of the said pipe and which is inclined to the,y

axis of fsaid pipe, said washinghead having :r battle -member located therein, said baffle member being located opposite the mouth of the said' pipeand intermediate said mouth and-the said end wall, the said bailie member having a deiiecting surface adapted to deflect ,any water impinging thereon, so thatthc water issues from the lateral mouth of the said washing head in two separate bodies inclined to the airis of the said pipe.

5. A Washing device for cans or other receptacles comprising a hollow washing head,

a pipe associated therewith, said washing head being transversely tapered and having ar end wall inclined to the axis of the said.y

pipe and opposite to the mouth of the said pipe, and a baille member located in said washing head opposite the mouth of the said pipe and intermediate said mouth and said end wall, said baille member having a deflecting surface adapted to deflect any water impinging thereon, so that the water issues from the lateral mouth ot the said washing head in two separate bodies inclined to the axis of the pipe.

6. A washing device for cans or other receptacles comprising a hollow Washing head, a pipe associated therewith, said washing head being transversely tapered and having an end wall inclined to the axis of the said pipe and opposite to the mouth of the said pipe.

In testimory whereof I hereunto afix my signature.

IR'A H. KENDALL.v 

